conservating tar headers in ftp download

Hello again,
This is the continuation of my earlier post but it really is a different topic:

So if i download manually a .tar.gz file all your solutions work perfectly (and i thank you again), BUT if i use the usual ftp retrbinary command to save a .tar.gz file linux sees it as a data file (when i use the command "file") and not a gzip.

Seems python modifies something in the file header or something that indicates it is a gzip file... Could you help me on this little problem again please?

Thanks
erwin

hi again,
i'm very sorry, but i've found my mistake, nothing to do with the retrbinary command.